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Finding the Fourth Proportional to 621,701.70, 932,552.55 and 572,712.90

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Solution

The fourth proportional to 621,701.70, 932,552.55 and 572,712.90 is: 859,069.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,701.70 : 932,552.55 = 572,712.90 : x
  2. Step 2: Convert to fraction form
    621,701.70/932,552.55 = 572,712.90/x
  3. Step 3: Cross multiply
    621,701.70x = 932,552.55 × 572,712.90
  4. Step 4: Simplify right side
    621,701.70x = 534,084,875,312.90
  5. Step 5: Solve for x
    x = 534,084,875,312.90/621,701.70
  6. Step 6: Final answer
    x = 859,069.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.